Question

Log4(x2-2)=1/2
Me pueden ayudar porfavor

Answer 1

log₄(x²-2) = 1/2

$4^{ log_{4} ( x^{2} -2)} = 4^{ \frac{1}{2} }$ 
x² - 2 = √4

x² - 2 = 2

x² = 4

x² - 4 = 0
(x-2)(x+2) = 0
x-2 = 0 o x+2 = 0
x = 2 o x = -2

por tanto x = 2 o x = -2